（1）前言：
这三次作业，其中第一次比较简单，二次难度较大。第一次要求写了座机计费，只考虑计费类型0-座机计费，通过接电话座机的区号判断采用什么计费方式。第二次的题目集增加了手机计费，座机接电话不用钱。第三次的题目集增加了短信计费，短信计费后累加，通过所在位置以及区号判断发短信价格。三次题目是层层递进关联的，在前面题目基础上完善。
（2）设计与分析：
①电信计费系列1-座机计费
实现一个简单的电信计费程序：假设南昌市电信分公司针对市内座机用户采用的计费方式：
月租20元，接电话免费，市内拨打电话0.1元/分钟，省内长途0.3元/分钟，国内长途拨打0.6元/分钟。不足一分钟按一分钟计。
南昌市的区号：0791，江西省内各地市区号包括：0790~0799以及0701。
输入格式:
输入信息包括两种类型
1、逐行输入南昌市用户开户的信息，每行一个用户，格式：u-号码 计费类型 （计费类型包括：0-座机 1-手机实时计费 2-手机A套餐）例如：u-079186300001 0座机号码除区号外由是7-8位数字组成。本题只考虑计费类型0-座机计费，电信系列2、3题会逐步增加计费类型。
2、逐行输入本月某些用户的通讯信息，通讯信息格式：座机呼叫座机：t-主叫号码 接听号码 起始时间 结束时间t-079186330022 058686330022 2022.1.3 10:00:25 2022.1.3 10:05:11以上四项内容之间以一个英文空格分隔，时间必须符合"yyyy.MM.dd HH:mm:ss"格式。提示：使用SimpleDateFormat类。以上两类信息，先输入所有开户信息，再输入所有通讯信息，最后一行以“end”结束。
注意：
本题非法输入只做格式非法的判断，不做内容是否合理的判断（时间除外，否则无法计算），比如：
1、输入的所有通讯信息均认为是同一个月的通讯信息，不做日期是否在同一个月还是多个月的判定，直接将通讯费用累加，因此月租只计算一次。2、记录中如果同一电话号码的多条通话记录时间出现重合，这种情况也不做判断，直接 计算每条记录的费用并累加。3、用户区号不为南昌市的区号也作为正常用户处理。
输出格式:根据输入的详细通讯信息，计算所有已开户的用户的当月费用（精确到小数点后2位，单位元）。假设每个用户初始余额是100元。每条通讯信息单独计费后累加，不是将所有时间累计后统一计费。格式：号码+英文空格符+总的话费+英文空格符+余额每个用户一行，用户之间按号码字符从小到大排序。
错误处理：输入数据中出现的不符合格式要求的行一律忽略。
分析:
考察了正则表达式的应用，通过正则表达式将输入通话记录数据中出现的不符合格式要求的行忽略，判断是开户还是拨打电话。还考察了字符串的截取，将开户电话号码、拨打电话号码、接听电话号码、拨打电话区号、接听电话区号、开始时间以及结束时间分别截取出来。
图1
图1中User是用户类，包括属性：
userRecords （用户记录）、balance（余额）、chargeMode（计费方式）、number（号码）。
ChargeMode是计费方式的抽象类：chargeRules是计费方式所包含的各种计费规则的集合，ChargeRule类的定义见图3。getMonthlyRent（）方法用于返回月租（monthlyRent）。
UserRecords是用户记录类，保存用户各种通话、短信的记录， 各种计费规则将使用其中的部分或者全部记录。其属性从上到下依次是：市内拨打电话、省内（不含市内）拨打电话、省外拨打电话、市内接听电话、省内（不含市内）接听电话、省外接听电话的记录以及发送短信、接收短信的记录。
图2
图2中CommunicationRecord是抽象的通讯记录类：callingNumber拨打号码、answerNumber接听号码两个属性。
CallRecord（通话记录）、MessageRecord（短信记录）是它的子类。
CallRecord（通话记录类）包含属性：通话的起始、结束时间以及拨号地点的区号（callingAddressAreaCode）、接听地点的区号（answerAddressAreaCode）。区号用于记录在哪个地点拨打和接听的电话。座机无法移动，就是本机区号，如果是手机号，则会有差异。
图3
图3是计费规则的相关类，这些类的核心方法是：calCost（ArrayList<CallRecord> callRecords）。
该方法针根据输入参数callRecords中的所有记录计算某用户的某一项费用；如市话费。
输入参数callRecords的约束条件：必须是某一个用户的符合计费规则要求的所有记录。
LandPhoneInCityRule、LandPhoneInProvinceRule、LandPhoneInLandRule三个类分别是座机拨打市内、省内、省外电话的计费规则类，用于实现这三种情况的费用计算。
源码:
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.text.ParseException;
public class Main {
public static void main(String[] args) {
Outputtool outputtool = new Outputtool();
Inputdeal inputdeal = new Inputdeal();
ArrayList<User> users = new ArrayList<>();
Scanner in = new Scanner(System.in);
String input = in.nextLine();
while (!input.equals("end")) {
if (1 == inputdeal.check(input)) {
inputdeal.writeUser(users, input);
} else if (2 == inputdeal.check(input)) {
inputdeal.writeRecord(users, input);
}
input = in.nextLine();
}
users.sort(new Comparator<User>() {
@Override
public int compare(User u1, User u2) {
if (Double.parseDouble(u1.getNumber()) > Double.parseDouble(u2.getNumber())) {
return 1;
} else {
return -1;
}
}
});
for (User u : users) {
System.out.print(u.getNumber() + " ");
outputtool.output(u.calCost());
System.out.print(" ");
outputtool.output(u.calBalance());
System.out.println();
}
}
}
abstract class ChargeMode {
protected ArrayList<ChargeRule> chargeRules = new ArrayList<>();
public abstract double calCost(UserRecords userRecords);
public abstract double getMonthlyRent();
public ArrayList<ChargeRule> getChargeRules() {
return chargeRules;
}
public void setChargeRules(ArrayList<ChargeRule> chargeRules) {
this.chargeRules = chargeRules;
}
}
class UserRecords {
private ArrayList<CallRecord> callingInCityRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> callingInProvinceRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> callingInLandRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInCityRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInProvinceRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInLandRecords = new ArrayList<CallRecord>();
private ArrayList<MessageRecord> sendMessageRecords = new ArrayList<MessageRecord>();
private ArrayList<MessageRecord> receiveMessageRecords = new ArrayList<MessageRecord>();
public void addCallingInCityRecords(CallRecord callRecord) {
callingInCityRecords.add(callRecord);
}
public void addCallingInProvinceRecords(CallRecord callRecord) {
callingInProvinceRecords.add(callRecord);
}
public void addCallingInLandRecords(CallRecord callRecord) {
callingInLandRecords.add(callRecord);
}
public void addAnswerInCityRecords(CallRecord callRecord) {
answerInCityRecords.add(callRecord);
}
public void aaddAnswerInProvinceRecords(CallRecord callRecord) {
answerInProvinceRecords.add(callRecord);
}
public void addAnswerInLandRecords(CallRecord callRecord) {
answerInLandRecords.add(callRecord);
}
public void addSendMessageRecords(MessageRecord callRecord) {
sendMessageRecords.add(callRecord);
}
public void addReceiveMessageRecords(MessageRecord callRecord) {
receiveMessageRecords.add(callRecord);
}
public ArrayList<CallRecord> getCallingInCityRecords() {
return callingInCityRecords;
}
public void setCallingInCityRecords(ArrayList<CallRecord> callingInCityRecords) {
this.callingInCityRecords = callingInCityRecords;
}
public ArrayList<CallRecord> getCallingInProvinceRecords() {
return callingInProvinceRecords;
}
public void setCallingInProvinceRecords(ArrayList<CallRecord> callingInProvinceRecords) {
this.callingInProvinceRecords = callingInProvinceRecords;
}
public ArrayList<CallRecord> getCallingInLandRecords() {
return callingInLandRecords;
}
public void setCallingInLandRecords(ArrayList<CallRecord> callingInLandRecords) {
this.callingInLandRecords = callingInLandRecords;
}
public ArrayList<CallRecord> getAnswerInCityRecords() {
return answerInCityRecords;
}
public void setAnswerInCityRecords(ArrayList<CallRecord> answerInCityRecords) {
this.answerInCityRecords = answerInCityRecords;
}
public ArrayList<CallRecord> getAnswerInProvinceRecords() {
return answerInProvinceRecords;
}
public void setAnswerInProvinceRecords(ArrayList<CallRecord> answerInProvinceRecords) {
this.answerInProvinceRecords = answerInProvinceRecords;
}
public ArrayList<CallRecord> getAnswerInLandRecords() {
return answerInLandRecords;
}
public void setAnswerInLandRecords(ArrayList<CallRecord> answerInLandRecords) {
this.answerInLandRecords = answerInLandRecords;
}
public ArrayList<MessageRecord> getSendMessageRecords() {
return sendMessageRecords;
}
public void setSendMessageRecords(ArrayList<MessageRecord> sendMessageRecords) {
this.sendMessageRecords = sendMessageRecords;
}
public ArrayList<MessageRecord> getReceiveMessageRecords() {
return receiveMessageRecords;
}
public void setReceiveMessageRecords(ArrayList<MessageRecord> receiveMessageRecords) {
this.receiveMessageRecords = receiveMessageRecords;
}
}
class LandlinePhoneCharging extends ChargeMode {
private double monthlyRent = 20;
public LandlinePhoneCharging() {
super();
chargeRules.add(new LandPhoneInCityRule());
chargeRules.add(new LandPhoneInProvinceRule());
chargeRules.add(new LandPhoneInlandRule());
}
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (ChargeRule rule : chargeRules) {
sumCost += rule.calCost(userRecords);
}
return sumCost;
}
@Override
public double getMonthlyRent() {
return monthlyRent;
}
}
class Inputdeal {
public int check(String input) {
String[] inputs = input.split(" ");
if (inputs.length == 2) {
if (inputs[0].matches("^u-[0-9]{11,13}$")) {
if (Integer.parseInt(inputs[1]) >= 0) {
if (Integer.parseInt(inputs[1]) <= 2) {
return 1;
}
}
}
} else if (inputs.length == 6) {
// if(input.matches("[t]-0791[0-9]{7,8}\\s" + "0[0-9]{9,11}\\s" +
// "((([0-9]{3}[1-9]|[0-9]{2}[1-9][0-9]|[0-9][1-9][0-9]{2}|[1-9][0-9]{3})\\.(((0?[13578]|1[02])\\.(0?" +
// "[1-9]|[12][0-9]|3[01]))|(([469]|11)\\.([1-9]|[12][0-9]|30))|(2\\.([1-9]|[1][0-9]|2[0-8]))))|(((" +
// "[0-9]{2})([48]|[2468][048]|[13579][26])|(([48]|[2468][048]|[3579][26])00))\\.2\\.29))" +
// "\\s([0-1]?[0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])\\s" +
// "((([0-9]{3}[1-9]|[0-9]{2}[1-9][0-9]|[0-9][1-9][0-9]{2}|[1-9][0-9]{3})\\.((([13578]|1[02])\\.(" +
// "[1-9]|[12][0-9]|3[01]))|(([469]|11)\\.([1-9]|[12][0-9]|30))|(2\\.([1-9]|[1][0-9]|2[0-8]))))|(((" +
// "[0-9]{2})([48]|[2468][048]|[13579][26])|(([48]|[2468][048]|[3579][26])00))\\.2\\.29))" +
// "\\s([0-1]?[0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])")) {
// return 2;
// }
if (validate(inputs[2]))
if (validate(inputs[4]))
if (validatet(inputs[3]))
if (validatet(inputs[5]))
// if (inputs[0].matches("^t\\-[0-9]{10,12}$")) {
if (inputs[0].matches("[t]-0791[0-9]{7,8}")) {
if (inputs[1].matches(".[0-9]{9,11}"))
return 2;
}
}
return 0;
}
private boolean validatet(String string) {
String[] split = string.split(":");
if (!string.matches("^([0-1]?[0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])$")) {
return false;
}
return true;
}
public static boolean validate(String dateString) {
// 使用正则表达式 测试 字符 符合 dddd.dd.dd 的格式(d表示数字)
Pattern p = Pattern.compile("\\d{4}+[\\.]\\d{1,2}+[\\.]\\d{1,2}+");
Matcher m = p.matcher(dateString);
if (!m.matches()) {
return false;
}
// 得到年月日
String[] array = dateString.split("\\.");
int year = Integer.valueOf(array[0]);
int month = Integer.valueOf(array[1]);
int day = Integer.valueOf(array[2]);
if (month < 1 || month > 12) {
return false;
}
int[] monthLengths = new int[] { 0, 31, -1, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
if (isLeapYear(year)) {
monthLengths[2] = 29;
} else {
monthLengths[2] = 28;
}
int monthLength = monthLengths[month];
if (day < 1 || day > monthLength) {
return false;
}
return true;
}
/** 是否是闰年 */
private static boolean isLeapYear(int year) {
return ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
}
public boolean judge(String input) {
return false;
}
public void writeUser(ArrayList<User> users, String input) {
User usernew = new User();
String[] inputs = input.split(" ");
String num = inputs[0].substring(2);
for (User i : users) {
if (i.getNumber().equals(num)) {
return;
}
}
usernew.setNumber(num);
int mode = Integer.parseInt(inputs[1]);
if (mode == 0) {
usernew.setChargeMode(new LandlinePhoneCharging());
}
users.add(usernew);
}
public void writeRecord(ArrayList<User> users, String input) {
String[] inputs = input.split(" ");
inputs[0] = inputs[0].replace("t-", "");
User callu = null, answeru = null;
CallRecord callrecord = new CallRecord(inputs);
for (User i : users) {
if (i.getNumber().equals(inputs[0])) {
callu = i;
}
if (i.getNumber().equals(inputs[1])) {
answeru = i;
}
if (callu != null && answeru != null) {
break;
}
}
if (callu != null) {
if (callrecord.getCallType() == 1) {
callu.getUserRecords().addCallingInCityRecords(callrecord);
} else if (callrecord.getCallType() == 2) {
callu.getUserRecords().addCallingInProvinceRecords(callrecord);
} else {
callu.getUserRecords().addCallingInLandRecords(callrecord);
}
}
if (answeru != null) {
if (callrecord.getCallType() == 1) {
answeru.getUserRecords().addAnswerInCityRecords(callrecord);
} else if (callrecord.getCallType() == 2) {
answeru.getUserRecords().aaddAnswerInProvinceRecords(callrecord);
} else {
answeru.getUserRecords().addAnswerInLandRecords(callrecord);
}
}
}
}
abstract class CommunicationRecord {
protected String callingNumber;
protected String answerNumbe;
public String getCallingNumber() {
return callingNumber;
}
public void setCallingNumber(String callingNumber) {
this.callingNumber = callingNumber;
}
public String getAnswerNumbe() {
return answerNumbe;
}
public void setAnswerNumbe(String answerNumbe) {
this.answerNumbe = answerNumbe;
}
}
abstract class ChargeRule {
abstract public double calCost(UserRecords userRecords);
}
class CallRecord extends CommunicationRecord {
private Date startTime;
private Date endTime;
private String callingAddressAreaCode;
private String answerAddressAreaCode;
public int getCallType() {
if (callingAddressAreaCode.equals(answerAddressAreaCode)) {
return 1;
}
if (callingAddressAreaCode.matches("^079[0-9]$") || callingAddressAreaCode.equals("0701")) {
if (answerAddressAreaCode.matches("^079[0-9]$") || answerAddressAreaCode.equals("0701")) {
return 2;
}
}
return 3;
}
public CallRecord(String[] inputs) {
super();
if (inputs[0].length() == 10) {
callingAddressAreaCode = inputs[0].substring(0, 3);
} else {
callingAddressAreaCode = inputs[0].substring(0, 4);
}
if (inputs[1].length() == 10) {
answerAddressAreaCode = inputs[1].substring(0, 3);
} else {
answerAddressAreaCode = inputs[1].substring(0, 4);
}
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss", Locale.getDefault());
try {
startTime = simpleDateFormat.parse(inputs[2] + " " + inputs[3]);
endTime = simpleDateFormat.parse(inputs[4] + " " + inputs[5]);
} catch (ParseException e) {
}
}
public CallRecord(Date startTime, Date endTime, String callingAddressAreaCode, String answerAddressAreaCode) {
super();
this.startTime = startTime;
this.endTime = endTime;
this.callingAddressAreaCode = callingAddressAreaCode;
this.answerAddressAreaCode = answerAddressAreaCode;
}
public Date getStartTime() {
return startTime;
}
public void setStartTime(Date startTime) {
this.startTime = startTime;
}
public Date getEndTime() {
return endTime;
}
public void setEndTime(Date endTime) {
this.endTime = endTime;
}
public String getCallingAddressAreaCode() {
return callingAddressAreaCode;
}
public void setCallingAddressAreaCode(String callingAddressAreaCode) {
this.callingAddressAreaCode = callingAddressAreaCode;
}
public String getAnswerAddressAreaCode() {
return answerAddressAreaCode;
}
public void setAnswerAddressAreaCode(String answerAddressAreaCode) {
this.answerAddressAreaCode = answerAddressAreaCode;
}
}
abstract class CallChargeRule extends ChargeRule {
}
class LandPhoneInCityRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInCityRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.1;
}
return sumCost;
}
}
class LandPhoneInlandRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInLandRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.6;
}
return sumCost;
}
}
class LandPhoneInProvinceRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInProvinceRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.3;
}
return sumCost;
}
}
class MessageRecord extends CommunicationRecord {
private String message;
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
class User {
private UserRecords userRecords = new UserRecords();
private double balance = 100;
private ChargeMode chargeMode;
private String number;
public double calCost() {
return chargeMode.calCost(userRecords);
}
public double calBalance() {
return balance - chargeMode.getMonthlyRent() - chargeMode.calCost(userRecords);
}
public UserRecords getUserRecords() {
return userRecords;
}
public void setUserRecords(UserRecords userRecords) {
this.userRecords = userRecords;
}
public ChargeMode getChargeMode() {
return chargeMode;
}
public void setChargeMode(ChargeMode chargeMode) {
this.chargeMode = chargeMode;
}
public String getNumber() {
return number;
}
public void setNumber(String number) {
this.number = number;
}
}
class Outputtool {
public void output(double out) {
// java.text.DecimalFormat df=new java.text.DecimalFormat("#.##");
// String a=df.format(out);
// System.out.print(a);
BigDecimal numb = new BigDecimal(out);
out = numb.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
System.out.print(out);
}
}
②电信计费系列2-手机+座机计费
实现南昌市电信分公司的计费程序，假设该公司针对手机和座机用户分别采取了两种计费方案，分别如下：
1、针对市内座机用户采用的计费方式（与电信计费系列1内容相同）：月租20元，接电话免费，市内拨打电话0.1元/分钟，省内长途0.3元/分钟，国内长途拨打0.6元/分钟。不足一分钟按一分钟计。假设本市的区号：0791，江西省内各地市区号包括：0790~0799以及0701。
2、针对手机用户采用实时计费方式：月租15元，市内省内接电话均免费，市内拨打市内电话0.1元/分钟，市内拨打省内电话0.2元/分钟，市内拨打省外电话0.3元/分钟，省内漫游打电话0.3元/分钟，省外漫游接听0.3元/分钟，省外漫游拨打0.6元/分钟；注：被叫电话属于市内、省内还是国内由被叫电话的接听地点区号决定，比如以下案例中，南昌市手机用户13307912264在区号为020的广州接听了电话，主叫号码应被计算为拨打了一个省外长途，同时，手机用户13307912264也要被计算省外接听漫游费：u-13307912264 1 t-079186330022 13307912264 020 2022.1.3 10:00:25 2022.1.3 10:05:11
输入：
输入信息包括两种类型:
1、逐行输入南昌市用户开户的信息，每行一个用户，含手机和座机用户。格式：u-号码 计费类型 （计费类型包括：0-座机 1-手机实时计费 2-手机A套餐）例如：u-079186300001 0。座机号码由区号和电话号码拼接而成，电话号码包含7-8位数字，区号最高位是0。手机号码由11位数字构成，最高位是1。本题在电信计费系列1基础上增加类型1-手机实时计费。手机设置0或者座机设置成1，此种错误可不做判断。
2、逐行输入本月某些用户的通讯信息，通讯信息格式：座机呼叫座机：t-主叫号码 接听号码 起始时间 结束时间t-079186330022，058686330022 2022.1.3 10:00:25 2022.1.3 10:05:11，以上四项内容之间以一个英文空格分隔，时间必须符合"yyyy.MM.dd HH:mm:ss"格式。提示：使用SimpleDateFormat类。输入格式增加手机接打电话以及收发短信的格式，手机接打电话的信息除了号码之外需要额外记录拨打/接听的地点的区号，比如：
座机打手机：t-主叫号码 接听号码 接听地点区号 起始时间 结束时间，t-079186330022 13305862264 020 2022.1.3 10:00:25 2022.1.3 10:05:11
手机互打：t-主叫号码 拨号地点 接听号码 接听地点区号 起始时间 结束时间，t-18907910010 0791 13305862264 0371 2022.1.3 10:00:25 2022.1.3 10:05:11
注意：以上两类信息，先输入所有开户信息，再输入所有通讯信息，最后一行以“end”结束。
输出：根据输入的详细通讯信息，计算所有已开户的用户的当月费用（精确到小数点后2位，单位元）。假设每个用户初始余额是100元。每条通讯、短信信息均单独计费后累加，不是将所有信息累计后统一计费。格式：号码+英文空格符+总的话费+英文空格符+余额每个用户一行，用户之间按号码字符从小到大排序。
错误处理：输入数据中出现的不符合格式要求的行一律忽略。
分析:
根据手机和座机的不同进行不同的费用计算，并且要根据手机现所在地判断是省内漫游或是省外漫游，不同漫游方式每小时价格不同，以及接听电话也要计费，在不同地区接听电话计费价格也不同。
图1中User是用户类，包括属性：
userRecords （用户记录）、balance（余额）、chargeMode（计费方式）、number（号码）。
ChargeMode是计费方式的抽象类：
chargeRules是计费方式所包含的各种计费规则的集合，ChargeRule类的定义见图3。
getMonthlyRent（）方法用于返回月租（monthlyRent）。
UserRecords是用户记录类，保存用户各种通话、短信的记录，各种计费规则将使用其中的部分或者全部记录。
其属性从上到下依次是：市内拨打电话、省内（不含市内）拨打电话、省外拨打电话、市内接听电话、省内（不含市内）接听电话、省外接听电话的记录以及发送短信、接收短信的记录。
图2中CommunicationRecord是抽象的通讯记录类：
包含callingNumber拨打号码、answerNumber接听号码两个属性。
CallRecord（通话记录）、MessageRecord（短信记录）是它的子类。CallRecord（通话记录类）包含属性：通话的起始、结束时间以及拨号地点的区号（callingAddressAreaCode）、接听地点的区号（answerAddressAreaCode）。区号用于记录在哪个地点拨打和接听的电话。座机无法移动，就是本机区号，如果是手机号，则会有差异。
图3是计费规则的相关类，这些类的核心方法是：
calCost（ArrayList<CallRecord> callRecords）。
该方法针根据输入参数callRecords中的所有记录计算某用户的某一项费用；如市话费。
输入参数callRecords的约束条件：必须是某一个用户的符合计费规则要求的所有记录。
SendMessageRule是发送短信的计费规则类，用于计算发送短信的费用。
LandPhoneInCityRule、LandPhoneInProvinceRule、LandPhoneInLandRule三个类分别是座机拨打市内、省内、省外电话的计费规则类，用于实现这三种情况的费用计算。
源码:
// package integration;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.text.ParseException;
public class Main {
public static void main(String[] args) {
Outputtool outputtool = new Outputtool();
Inputdeal inputdeal = new Inputdeal();
ArrayList<User> users = new ArrayList<>();
Scanner in = new Scanner(System.in);
String input = in.nextLine();
while (!input.equals("end")) {
if (1 == inputdeal.check(input)) {
inputdeal.writeUser(users, input);
} else if (2 == inputdeal.check(input)) {
inputdeal.writeRecord(users, input);
}
input = in.nextLine();
}
users.sort(new Comparator<User>() {
@Override
public int compare(User u1, User u2) {
if (u1.getNumber().charAt(0) == '0' && u2.getNumber().charAt(0) != '0') {
return -1;
} else if (u1.getNumber().charAt(0) != '0' && u2.getNumber().charAt(0) == '0') {
return 1;
}
if (Double.parseDouble(u1.getNumber()) > Double.parseDouble(u2.getNumber())) {
return 1;
} else {
return -1;
}
}
});
for (User u : users) {
System.out.print(u.getNumber() + " ");
outputtool.output(u.calCost());
System.out.print(" ");
outputtool.output(u.calBalance());
System.out.println();
}
}
}
abstract class ChargeMode {
protected ArrayList<ChargeRule> chargeRules = new ArrayList<>();
public abstract double calCost(UserRecords userRecords);
public abstract double getMonthlyRent();
public ArrayList<ChargeRule> getChargeRules() {
return chargeRules;
}
public void setChargeRules(ArrayList<ChargeRule> chargeRules) {
this.chargeRules = chargeRules;
}
}
class UserRecords {
private ArrayList<CallRecord> callingInCityRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> callingInProvinceRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> callingInLandRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInCityRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInProvinceRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInLandRecords = new ArrayList<CallRecord>();
private ArrayList<MessageRecord> sendMessageRecords = new ArrayList<MessageRecord>();
private ArrayList<MessageRecord> receiveMessageRecords = new ArrayList<MessageRecord>();
public void addCallingInCityRecords(CallRecord callRecord) {
callingInCityRecords.add(callRecord);
}
public void addCallingInProvinceRecords(CallRecord callRecord) {
callingInProvinceRecords.add(callRecord);
}
public void addCallingInLandRecords(CallRecord callRecord) {
callingInLandRecords.add(callRecord);
}
public void addAnswerInCityRecords(CallRecord callRecord) {
answerInCityRecords.add(callRecord);
}
public void aaddAnswerInProvinceRecords(CallRecord callRecord) {
answerInProvinceRecords.add(callRecord);
}
public void addAnswerInLandRecords(CallRecord callRecord) {
answerInLandRecords.add(callRecord);
}
public void addSendMessageRecords(MessageRecord callRecord) {
sendMessageRecords.add(callRecord);
}
public void addReceiveMessageRecords(MessageRecord callRecord) {
receiveMessageRecords.add(callRecord);
}
public ArrayList<CallRecord> getCallingInCityRecords() {
return callingInCityRecords;
}
public void setCallingInCityRecords(ArrayList<CallRecord> callingInCityRecords) {
this.callingInCityRecords = callingInCityRecords;
}
public ArrayList<CallRecord> getCallingInProvinceRecords() {
return callingInProvinceRecords;
}
public void setCallingInProvinceRecords(ArrayList<CallRecord> callingInProvinceRecords) {
this.callingInProvinceRecords = callingInProvinceRecords;
}
public ArrayList<CallRecord> getCallingInLandRecords() {
return callingInLandRecords;
}
public void setCallingInLandRecords(ArrayList<CallRecord> callingInLandRecords) {
this.callingInLandRecords = callingInLandRecords;
}
public ArrayList<CallRecord> getAnswerInCityRecords() {
return answerInCityRecords;
}
public void setAnswerInCityRecords(ArrayList<CallRecord> answerInCityRecords) {
this.answerInCityRecords = answerInCityRecords;
}
public ArrayList<CallRecord> getAnswerInProvinceRecords() {
return answerInProvinceRecords;
}
public void setAnswerInProvinceRecords(ArrayList<CallRecord> answerInProvinceRecords) {
this.answerInProvinceRecords = answerInProvinceRecords;
}
public ArrayList<CallRecord> getAnswerInLandRecords() {
return answerInLandRecords;
}
public void setAnswerInLandRecords(ArrayList<CallRecord> answerInLandRecords) {
this.answerInLandRecords = answerInLandRecords;
}
public ArrayList<MessageRecord> getSendMessageRecords() {
return sendMessageRecords;
}
public void setSendMessageRecords(ArrayList<MessageRecord> sendMessageRecords) {
this.sendMessageRecords = sendMessageRecords;
}
public ArrayList<MessageRecord> getReceiveMessageRecords() {
return receiveMessageRecords;
}
public void setReceiveMessageRecords(ArrayList<MessageRecord> receiveMessageRecords) {
this.receiveMessageRecords = receiveMessageRecords;
}
}
class LandlinePhoneCharging extends ChargeMode {
private double monthlyRent = 20;
public LandlinePhoneCharging() {
super();
chargeRules.add(new LandPhoneInCityRule());
chargeRules.add(new LandPhoneInProvinceRule());
chargeRules.add(new LandPhoneInlandRule());
}
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (ChargeRule rule : chargeRules) {
sumCost += rule.calCost(userRecords);
}
return sumCost;
}
@Override
public double getMonthlyRent() {
return monthlyRent;
}
}
class MobilePhoneCharging extends ChargeMode {
private double monthlyRent = 15;
public MobilePhoneCharging() {
super();
chargeRules.add(new MobilePhoneInCityRule());
chargeRules.add(new MobilePhoneInProvinceRule());
chargeRules.add(new MobilePhoneInlandRule());
}
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (ChargeRule rule : chargeRules) {
sumCost += rule.calCost(userRecords);
}
return sumCost;
}
@Override
public double getMonthlyRent() {
return monthlyRent;
}
}
class Inputdeal {
public int check(String input) {
if (input.matches("[u]-0791[0-9]{7,8}\\s[0]") || input.matches("[u]-1[0-9]{10}\\s[1]")) {
return 1;
// } else if (input.charAt(0) == 'm') {
// return 2;
} else if (input.matches("(([t]-0791[0-9]{7,8}\\s" + "0[0-9]{9,11}\\s)|"
+ "([t]-0791[0-9]{7,8}\\s" + "1[0-9]{10}\\s" + "0[0-9]{2,3}\\s)|"
+ "([t]-1[0-9]{10}\\s" + "0[0-9]{2,3}\\s" + "0[0-9]{9,11}\\s)|"
+ "([t]-1[0-9]{10}\\s" + "0[0-9]{2,3}\\s" + "1[0-9]{10}\\s" + "0[0-9]{2,3}\\s))"
+ "((([0-9]{3}[1-9]|[0-9]{2}[1-9][0-9]|[0-9][1-9][0-9]{2}|[1-9][0-9]{3})\\.(((0?[13578]|1[02])\\.(0?"
+ "[1-9]|[12][0-9]|3[01]))|(([469]|11)\\.([1-9]|[12][0-9]|30))|(2\\.([1-9]|[1][0-9]|2[0-8]))))|((("
+ "[0-9]{2})([48]|[2468][048]|[13579][26])|(([48]|[2468][048]|[3579][26])00))\\.2\\.29))"
+ "\\s([0-1]?[0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])\\s"
+ "((([0-9]{3}[1-9]|[0-9]{2}[1-9][0-9]|[0-9][1-9][0-9]{2}|[1-9][0-9]{3})\\.((([13578]|1[02])\\.("
+ "[1-9]|[12][0-9]|3[01]))|(([469]|11)\\.([1-9]|[12][0-9]|30))|(2\\.([1-9]|[1][0-9]|2[0-8]))))|((("
+ "[0-9]{2})([48]|[2468][048]|[13579][26])|(([48]|[2468][048]|[3579][26])00))\\.2\\.29))"
+ "\\s([0-1]?[0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])")) {
return 2;
}
return 0;
}
@SuppressWarnings("unused")
private boolean validatet(String string) {
if (!string.matches("^([0-1]?[0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])$")) {
return false;
}
return true;
}
public static boolean validate(String dateString) {
// 使用正则表达式 测试 字符 符合 dddd.dd.dd 的格式(d表示数字)
Pattern p = Pattern.compile("\\d{4}+[\\.]\\d{1,2}+[\\.]\\d{1,2}+");
Matcher m = p.matcher(dateString);
if (!m.matches()) {
return false;
}
// 得到年月日
String[] array = dateString.split("\\.");
int year = Integer.valueOf(array[0]);
int month = Integer.valueOf(array[1]);
int day = Integer.valueOf(array[2]);
if (month < 1 || month > 12) {
return false;
}
int[] monthLengths = new int[] { 0, 31, -1, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
if (isLeapYear(year)) {
monthLengths[2] = 29;
} else {
monthLengths[2] = 28;
}
int monthLength = monthLengths[month];
if (day < 1 || day > monthLength) {
return false;
}
return true;
}
/** 是否是闰年 */
private static boolean isLeapYear(int year) {
return ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
}
public boolean judge(String input) {
return false;
}
public void writeUser(ArrayList<User> users, String input) {
User usernew = new User();
String[] inputs = input.split(" ");
String num = inputs[0].substring(2);
for (User i : users) {
if (i.getNumber().equals(num)) {
return;
}
}
usernew.setNumber(num);
int mode = Integer.parseInt(inputs[1]);
if (mode == 0) {
usernew.setChargeMode(new LandlinePhoneCharging());
} else if (mode == 1) {
usernew.setChargeMode(new MobilePhoneCharging());
}
users.add(usernew);
}
public void writeRecord(ArrayList<User> users, String input) {
String[] inputs = input.split(" ");
User callu = null, answeru = null;
CallRecord callrecord = new CallRecord(inputs);
if (input.charAt(0) == 't') {
String out = inputs[0];
String in = "";
if (inputs.length == 6) {
in = inputs[1];
} else if (inputs.length == 7) {
in = inputs[1];
} else if (inputs.length == 8) {
in = inputs[2];
}
for (User i : users) {
if (i.getNumber().equals(out)) {
callu = i;
}
if (i.getNumber().equals(in)) {
answeru = i;
}
if (callu != null && answeru != null) {
break;
}
}
if (callu != null) {
if (callrecord.getCallType().matches("^1[1-3]$")) {
callu.getUserRecords().addCallingInCityRecords(callrecord);
} else if (callrecord.getCallType().matches("^2[1-3]$")) {
callu.getUserRecords().addCallingInProvinceRecords(callrecord);
} else {
callu.getUserRecords().addCallingInLandRecords(callrecord);
}
}
if (answeru != null) {
if (callrecord.getCallType().matches("^[1-3]1$")) {
answeru.getUserRecords().addAnswerInCityRecords(callrecord);
} else if (callrecord.getCallType().matches("^[1-3]2$")) {
answeru.getUserRecords().aaddAnswerInProvinceRecords(callrecord);
} else {
answeru.getUserRecords().addAnswerInLandRecords(callrecord);
}
}
} else if (input.charAt(0) == 'm') {
}
}
}
abstract class CommunicationRecord {
protected String callingNumber;
protected String answerNumbe;
public String getCallingNumber() {
return callingNumber;
}
public void setCallingNumber(String callingNumber) {
this.callingNumber = callingNumber;
}
public String getAnswerNumbe() {
return answerNumbe;
}
public void setAnswerNumbe(String answerNumbe) {
this.answerNumbe = answerNumbe;
}
}
abstract class ChargeRule {
abstract public double calCost(UserRecords userRecords);
}
class CallRecord extends CommunicationRecord {
private Date startTime;
private Date endTime;
private String callingAddressAreaCode;
private String answerAddressAreaCode;
public String getCallType() {
String type = "";
if (callingAddressAreaCode.equals("0791")) {
type = type.concat("1");
} else if (callingAddressAreaCode.matches("^079[023456789]$") || callingAddressAreaCode.equals("0701")) {
type = type.concat("2");
} else {
type = type.concat("3");
}
if (answerAddressAreaCode.equals("0791")) {
type = type.concat("1");
} else if (answerAddressAreaCode.matches("^079[023456789]$") || answerAddressAreaCode.equals("0701")) {
type = type.concat("2");
} else {
type = type.concat("3");
}
return type;
}
public CallRecord(String[] inputs) {
super();
char type = inputs[0].charAt(0);
inputs[0] = inputs[0].substring(2);
String sd = null, st = null, ed = null, et = null;
if (type == 't') {
if (inputs.length == 6) {
sd = inputs[2];
st = inputs[3];
ed = inputs[4];
et = inputs[5];
callingAddressAreaCode = inputs[0].substring(0, 4);
answerAddressAreaCode = inputs[1].substring(0, 4);
} else if (inputs.length == 7) {
sd = inputs[3];
st = inputs[4];
ed = inputs[5];
et = inputs[6];
if (inputs[0].charAt(0) != '0') {
if (inputs[2].length() == 10) {
answerAddressAreaCode = inputs[2].substring(0, 3);
} else {
answerAddressAreaCode = inputs[2].substring(0, 4);
}
callingAddressAreaCode = inputs[1];
} else {
if (inputs[0].length() == 10) {
callingAddressAreaCode = inputs[0].substring(0, 3);
} else {
callingAddressAreaCode = inputs[0].substring(0, 4);
}
answerAddressAreaCode = inputs[2];
}
} else if (inputs.length == 8) {
sd = inputs[4];
st = inputs[5];
ed = inputs[6];
et = inputs[7];
callingAddressAreaCode = inputs[1];
answerAddressAreaCode = inputs[3];
}
} else if (type == 'm') {
}
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss", Locale.getDefault());
try {
startTime = simpleDateFormat.parse(sd + " " + st);
endTime = simpleDateFormat.parse(ed + " " + et);
} catch (ParseException e) {
}
}
public CallRecord(Date startTime, Date endTime, String callingAddressAreaCode, String answerAddressAreaCode) {
super();
this.startTime = startTime;
this.endTime = endTime;
this.callingAddressAreaCode = callingAddressAreaCode;
this.answerAddressAreaCode = answerAddressAreaCode;
}
public Date getStartTime() {
return startTime;
}
public void setStartTime(Date startTime) {
this.startTime = startTime;
}
public Date getEndTime() {
return endTime;
}
public void setEndTime(Date endTime) {
this.endTime = endTime;
}
public String getCallingAddressAreaCode() {
return callingAddressAreaCode;
}
public void setCallingAddressAreaCode(String callingAddressAreaCode) {
this.callingAddressAreaCode = callingAddressAreaCode;
}
public String getAnswerAddressAreaCode() {
return answerAddressAreaCode;
}
public void setAnswerAddressAreaCode(String answerAddressAreaCode) {
this.answerAddressAreaCode = answerAddressAreaCode;
}
}
abstract class CallChargeRule extends ChargeRule {
}
class LandPhoneInCityRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInCityRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
if (call.getCallType().equals("11")) {
sumCost += distanceM * 0.1;
} else if (call.getCallType().equals("12")) {
sumCost += distanceM * 0.3;
} else if (call.getCallType().equals("13")) {
sumCost += distanceM * 0.6;
}
}
return sumCost;
}
}
class LandPhoneInlandRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInLandRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.6;
}
return sumCost;
}
}
class LandPhoneInProvinceRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInProvinceRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.3;
}
return sumCost;
}
}
class MobilePhoneInCityRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInCityRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
if (call.getCallType().equals("11")) {
sumCost += distanceM * 0.1;
} else if (call.getCallType().equals("12")) {
sumCost += distanceM * 0.2;
} else if (call.getCallType().equals("13")) {
sumCost += distanceM * 0.3;
}
}
return sumCost;
}
}
class MobilePhoneInlandRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInLandRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.6;
}
for (CallRecord call : userRecords.getAnswerInLandRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.3;
}
return sumCost;
}
}
class MobilePhoneInProvinceRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInProvinceRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
if (call.getCallType().equals("21")) {
sumCost += distanceM * 0.3;
} else if (call.getCallType().equals("22")) {
sumCost += distanceM * 0.3;
} else if (call.getCallType().equals("23")) {
sumCost += distanceM * 0.3;
}
}
return sumCost;
}
}
class MessageRecord extends CommunicationRecord {
private String message;
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
class User {
private UserRecords userRecords = new UserRecords();
private double balance = 100;
private ChargeMode chargeMode;
private String number;
public double calCost() {
return chargeMode.calCost(userRecords);
}
public double calBalance() {
return balance - chargeMode.getMonthlyRent() - chargeMode.calCost(userRecords);
}
public UserRecords getUserRecords() {
return userRecords;
}
public void setUserRecords(UserRecords userRecords) {
this.userRecords = userRecords;
}
public ChargeMode getChargeMode() {
return chargeMode;
}
public void setChargeMode(ChargeMode chargeMode) {
this.chargeMode = chargeMode;
}
public String getNumber() {
return number;
}
public void setNumber(String number) {
this.number = number;
}
}
class Outputtool {
@SuppressWarnings("deprecation")
public void output(double out) {
// java.text.DecimalFormat df=new java.text.DecimalFormat("#.##");
// String a=df.format(out);
// System.out.print(a);
BigDecimal numb = new BigDecimal(out);
out = numb.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
System.out.print(out);
}
}
View Code
③电信计费系列3-短信计费
实现一个简单的电信计费程序，针对手机的短信采用如下计费方式：
1、接收短信免费，发送短信0.1元/条，超过3条0.2元/条，超过5条0.3元/条。
2、如果一次发送短信的字符数量超过10个，按每10个字符一条短信进行计算。
输入：
输入信息包括两种类型
1、逐行输入南昌市手机用户开户的信息，每行一个用户。
格式：u-号码 计费类型 （计费类型包括：0-座机 1-手机实时计费 2-手机A套餐 3-手机短信计费）
例如：u-13305862264 3
座机号码由区号和电话号码拼接而成，电话号码包含7-8位数字，区号最高位是0。
手机号码由11位数字构成，最高位是1。
本题只针对类型3-手机短信计费。
2、逐行输入本月某些用户的短信信息，短信的格式：m-主叫号码，接收号码，短信内容 （短信内容只能由数字、字母、空格、英文逗号、英文句号组成），m-18907910010 13305862264 welcome to jiangxi. m-13305862264 18907910010 thank you.
注意：以上两类信息，先输入所有开户信息，再输入所有通讯信息，最后一行以“end”结束。
输出：根据输入的详细短信信息，计算所有已开户的用户的当月短信费用（精确到小数点后2位，单位元）。假设每个用户初始余额是100元。每条短信信息均单独计费后累加，不是将所有信息累计后统一计费。
格式：号码+英文空格符+总的话费+英文空格符+余额，每个用户一行，用户之间按号码字符从小到大排序。
错误处理：输入数据中出现的不符合格式要求的行一律忽略。本题只做格式的错误判断，无需做内容上不合理的判断，比如同一个电话两条通讯记录的时间有重合、开户号码非南昌市的号码、自己给自己打电话等，此类情况都当成正确的输入计算。但时间的输入必须符合要求，比如不能输入2022.13.61 28:72:65。
本题只考虑短信计费，不考虑通信费用以及月租费。
图1
图1中User是用户类，包括属性：
userRecords （用户记录）、balance（余额）、chargeMode（计费方式）、number（号码）。
ChargeMode是计费方式的抽象类：
chargeRules是计费方式所包含的各种计费规则的集合，ChargeRule类的定义见图3。
getMonthlyRent（）方法用于返回月租（monthlyRent）。
UserRecords是用户记录类，保存用户各种通话、短信的记录，各种计费规则将使用其中的部分或者全部记录。其属性从上到下依次是：市内拨打电话、省内（不含市内）拨打电话、省外拨打电话、市内接听电话、省内（不含市内）接听电话、省外接听电话的记录以及发送短信、接收短信的记录。
图2
图2中CommunicationRecord是抽象的通讯记录类：
包含callingNumber拨打号码、answerNumber接听号码两个属性。
CallRecord（通话记录）、MessageRecord（短信记录）是它的子类。
图3
图3是计费规则的相关类，这些类的核心方法是：
calCost（ArrayList callRecords）。该方法针根据输入参数callRecords中的所有记录计算某用户的某一项费用；如市话费。输入参数callRecords的约束条件：必须是某一个用户的符合计费规则要求的所有记录。
SendMessageRule是发送短信的计费规则类，用于计算发送短信的费用。
LandPhoneInCityRule、LandPhoneInProvinceRule、LandPhoneInLandRule三个类分别是座机拨打市内、省内、省外电话的计费规则类，用于实现这三种情况的费用计算。
源码:
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.text.ParseException;
public class Main {
public static void main(String[] args) {
Outputtool outputtool = new Outputtool();
Inputdeal inputdeal = new Inputdeal();
ArrayList<User> users = new ArrayList<>();
Scanner in = new Scanner(System.in);
String input = in.nextLine();
while (!input.equals("end")) {
if (1 == inputdeal.check(input)) {
inputdeal.writeUser(users, input);
} else if (2 == inputdeal.check(input)) {
inputdeal.writeRecord(users, input);
}
input = in.nextLine();
}
users.sort(new Comparator<User>() {
@Override
public int compare(User u1, User u2) {
if (u1.getNumber().charAt(0) == '0' && u2.getNumber().charAt(0) != '0') {
return -1;
} else if (u1.getNumber().charAt(0) != '0' && u2.getNumber().charAt(0) == '0') {
return 1;
}
if (Double.parseDouble(u1.getNumber()) > Double.parseDouble(u2.getNumber())) {
return 1;
} else {
return -1;
}
}
});
for (User u : users) {
System.out.print(u.getNumber() + " ");
outputtool.output(u.calCost());
System.out.print(" ");
outputtool.output(u.calBalance());
System.out.println();
}
}
}
abstract class ChargeMode {
protected ArrayList<ChargeRule> chargeRules = new ArrayList<>();
public abstract double calCost(UserRecords userRecords);
public abstract double getMonthlyRent();
public ArrayList<ChargeRule> getChargeRules() {
return chargeRules;
}
public void setChargeRules(ArrayList<ChargeRule> chargeRules) {
this.chargeRules = chargeRules;
}
}
class UserRecords {
private ArrayList<CallRecord> callingInCityRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> callingInProvinceRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> callingInLandRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInCityRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInProvinceRecords = new ArrayList<CallRecord>();
private ArrayList<CallRecord> answerInLandRecords = new ArrayList<CallRecord>();
private ArrayList<MessageRecord> sendMessageRecords = new ArrayList<MessageRecord>();
private ArrayList<MessageRecord> receiveMessageRecords = new ArrayList<MessageRecord>();
public void addCallingInCityRecords(CallRecord callRecord) {
callingInCityRecords.add(callRecord);
}
public void addCallingInProvinceRecords(CallRecord callRecord) {
callingInProvinceRecords.add(callRecord);
}
public void addCallingInLandRecords(CallRecord callRecord) {
callingInLandRecords.add(callRecord);
}
public void addAnswerInCityRecords(CallRecord callRecord) {
answerInCityRecords.add(callRecord);
}
public void aaddAnswerInProvinceRecords(CallRecord callRecord) {
answerInProvinceRecords.add(callRecord);
}
public void addAnswerInLandRecords(CallRecord callRecord) {
answerInLandRecords.add(callRecord);
}
public void addSendMessageRecords(MessageRecord callRecord) {
sendMessageRecords.add(callRecord);
}
public void addReceiveMessageRecords(MessageRecord callRecord) {
receiveMessageRecords.add(callRecord);
}
public ArrayList<CallRecord> getCallingInCityRecords() {
return callingInCityRecords;
}
public void setCallingInCityRecords(ArrayList<CallRecord> callingInCityRecords) {
this.callingInCityRecords = callingInCityRecords;
}
public ArrayList<CallRecord> getCallingInProvinceRecords() {
return callingInProvinceRecords;
}
public void setCallingInProvinceRecords(ArrayList<CallRecord> callingInProvinceRecords) {
this.callingInProvinceRecords = callingInProvinceRecords;
}
public ArrayList<CallRecord> getCallingInLandRecords() {
return callingInLandRecords;
}
public void setCallingInLandRecords(ArrayList<CallRecord> callingInLandRecords) {
this.callingInLandRecords = callingInLandRecords;
}
public ArrayList<CallRecord> getAnswerInCityRecords() {
return answerInCityRecords;
}
public void setAnswerInCityRecords(ArrayList<CallRecord> answerInCityRecords) {
this.answerInCityRecords = answerInCityRecords;
}
public ArrayList<CallRecord> getAnswerInProvinceRecords() {
return answerInProvinceRecords;
}
public void setAnswerInProvinceRecords(ArrayList<CallRecord> answerInProvinceRecords) {
this.answerInProvinceRecords = answerInProvinceRecords;
}
public ArrayList<CallRecord> getAnswerInLandRecords() {
return answerInLandRecords;
}
public void setAnswerInLandRecords(ArrayList<CallRecord> answerInLandRecords) {
this.answerInLandRecords = answerInLandRecords;
}
public ArrayList<MessageRecord> getSendMessageRecords() {
return sendMessageRecords;
}
public void setSendMessageRecords(ArrayList<MessageRecord> sendMessageRecords) {
this.sendMessageRecords = sendMessageRecords;
}
public ArrayList<MessageRecord> getReceiveMessageRecords() {
return receiveMessageRecords;
}
public void setReceiveMessageRecords(ArrayList<MessageRecord> receiveMessageRecords) {
this.receiveMessageRecords = receiveMessageRecords;
}
}
class LandlinePhoneCharging extends ChargeMode {
private double monthlyRent = 20;
public LandlinePhoneCharging() {
super();
chargeRules.add(new LandPhoneInCityRule());
chargeRules.add(new LandPhoneInProvinceRule());
chargeRules.add(new LandPhoneInlandRule());
}
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (ChargeRule rule : chargeRules) {
sumCost += rule.calCost(userRecords);
}
return sumCost;
}
@Override
public double getMonthlyRent() {
return monthlyRent;
}
}
class MobilePhoneCharging extends ChargeMode {
private double monthlyRent = 15;
public MobilePhoneCharging() {
super();
chargeRules.add(new MobilePhoneInCityRule());
chargeRules.add(new MobilePhoneInProvinceRule());
chargeRules.add(new MobilePhoneInlandRule());
}
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (ChargeRule rule : chargeRules) {
sumCost += rule.calCost(userRecords);
}
return sumCost;
}
@Override
public double getMonthlyRent() {
return monthlyRent;
}
}
class MobilePhoneMassageCharging extends ChargeMode {
private double monthlyRent = 0;
public MobilePhoneMassageCharging() {
super();
chargeRules.add(new MobilePhoneMessageRule());
}
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (ChargeRule rule : chargeRules) {
sumCost += rule.calCost(userRecords);
}
return sumCost;
}
@Override
public double getMonthlyRent() {
return monthlyRent;
}
}
class Inputdeal {
public int check(String input) {
if (input.matches("[u]-0791[0-9]{7,8}\\s[0]") || input.matches("[u]-1[0-9]{10}\\s[13]")) {
return 1;
} else if (input.matches("[m]-1[0-9]{10}\\s" + "1[0-9]{10}\\s" + "[0-9a-zA-Z\\s\\.,]+")) {
return 2;
}
return 0;
}
public void writeUser(ArrayList<User> users, String input) {
User usernew = new User();
String[] inputs = input.split(" ");
String num = inputs[0].substring(2);
for (User i : users) {
if (i.getNumber().equals(num)) {
return;
}
}
usernew.setNumber(num);
int mode = Integer.parseInt(inputs[1]);
if (mode == 0) {
usernew.setChargeMode(new LandlinePhoneCharging());
} else if (mode == 1) {
usernew.setChargeMode(new MobilePhoneCharging());
} else if (mode == 3) {
usernew.setChargeMode(new MobilePhoneMassageCharging());
}
users.add(usernew);
}
public void writeRecord(ArrayList<User> users, String input) {
String[] inputs = input.split(" ");
inputs[0] = inputs[0].substring(2);
User callu = null, answeru = null;
String out = inputs[0];
String in = "";
if (inputs.length == 6) {
in = inputs[1];
} else if (inputs.length == 7) {
in = inputs[1];
} else if (inputs.length == 8) {
in = inputs[2];
} else {
in = inputs[1];
}
for (User i : users) {
if (i.getNumber().equals(out)) {
callu = i;
}
if (i.getNumber().equals(in)) {
answeru = i;
}
if (callu != null && answeru != null) {
break;
}
}
if (input.charAt(0) == 'm') {
MessageRecord messageRecord = new MessageRecord(input);
if (callu != null) {
callu.getUserRecords().addSendMessageRecords(messageRecord);
;
}
if (answeru != null) {
callu.getUserRecords().addReceiveMessageRecords(messageRecord);
}
}
}
}
abstract class CommunicationRecord {
protected String callingNumber;
protected String answerNumbe;
public String getCallingNumber() {
return callingNumber;
}
public void setCallingNumber(String callingNumber) {
this.callingNumber = callingNumber;
}
public String getAnswerNumbe() {
return answerNumbe;
}
public void setAnswerNumbe(String answerNumbe) {
this.answerNumbe = answerNumbe;
}
}
abstract class ChargeRule {
abstract public double calCost(UserRecords userRecords);
}
class CallRecord extends CommunicationRecord {
private Date startTime;
private Date endTime;
private String callingAddressAreaCode;
private String answerAddressAreaCode;
public String getCallType() {
String type = "";
if (callingAddressAreaCode.equals("0791")) {
type = type.concat("1");
} else if (callingAddressAreaCode.matches("^079[023456789]$") || callingAddressAreaCode.equals("0701")) {
type = type.concat("2");
} else {
type = type.concat("3");
}
if (answerAddressAreaCode.equals("0791")) {
type = type.concat("1");
} else if (answerAddressAreaCode.matches("^079[023456789]$") || answerAddressAreaCode.equals("0701")) {
type = type.concat("2");
} else {
type = type.concat("3");
}
return type;
}
public CallRecord(String[] inputs) {
super();
char type = inputs[0].charAt(0);
String sd = null, st = null, ed = null, et = null;
if (type == 't') {
if (inputs.length == 6) {
sd = inputs[2];
st = inputs[3];
ed = inputs[4];
et = inputs[5];
callingAddressAreaCode = inputs[0].substring(0, 4);
answerAddressAreaCode = inputs[1].substring(0, 4);
} else if (inputs.length == 7) {
sd = inputs[3];
st = inputs[4];
ed = inputs[5];
et = inputs[6];
if (inputs[0].charAt(0) != '0') {
if (inputs[2].length() == 10) {
answerAddressAreaCode = inputs[2].substring(0, 3);
} else {
answerAddressAreaCode = inputs[2].substring(0, 4);
}
callingAddressAreaCode = inputs[1];
} else {
if (inputs[0].length() == 10) {
callingAddressAreaCode = inputs[0].substring(0, 3);
} else {
callingAddressAreaCode = inputs[0].substring(0, 4);
}
answerAddressAreaCode = inputs[2];
}
} else if (inputs.length == 8) {
sd = inputs[4];
st = inputs[5];
ed = inputs[6];
et = inputs[7];
callingAddressAreaCode = inputs[1];
answerAddressAreaCode = inputs[3];
}
} else if (type == 'm') {
}
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss", Locale.getDefault());
try {
startTime = simpleDateFormat.parse(sd + " " + st);
endTime = simpleDateFormat.parse(ed + " " + et);
} catch (ParseException e) {
}
}
public CallRecord(Date startTime, Date endTime, String callingAddressAreaCode, String answerAddressAreaCode) {
super();
this.startTime = startTime;
this.endTime = endTime;
this.callingAddressAreaCode = callingAddressAreaCode;
this.answerAddressAreaCode = answerAddressAreaCode;
}
public Date getStartTime() {
return startTime;
}
public void setStartTime(Date startTime) {
this.startTime = startTime;
}
public Date getEndTime() {
return endTime;
}
public void setEndTime(Date endTime) {
this.endTime = endTime;
}
public String getCallingAddressAreaCode() {
return callingAddressAreaCode;
}
public void setCallingAddressAreaCode(String callingAddressAreaCode) {
this.callingAddressAreaCode = callingAddressAreaCode;
}
public String getAnswerAddressAreaCode() {
return answerAddressAreaCode;
}
public void setAnswerAddressAreaCode(String answerAddressAreaCode) {
this.answerAddressAreaCode = answerAddressAreaCode;
}
}
abstract class CallChargeRule extends ChargeRule {
}
class LandPhoneInCityRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInCityRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
if (call.getCallType().equals("11")) {
sumCost += distanceM * 0.1;
} else if (call.getCallType().equals("12")) {
sumCost += distanceM * 0.3;
} else if (call.getCallType().equals("13")) {
sumCost += distanceM * 0.6;
}
}
return sumCost;
}
}
class LandPhoneInlandRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInLandRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.6;
}
return sumCost;
}
}
class LandPhoneInProvinceRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInProvinceRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.3;
}
return sumCost;
}
}
class MobilePhoneInCityRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInCityRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
if (call.getCallType().equals("11")) {
sumCost += distanceM * 0.1;
} else if (call.getCallType().equals("12")) {
sumCost += distanceM * 0.2;
} else if (call.getCallType().equals("13")) {
sumCost += distanceM * 0.3;
}
}
return sumCost;
}
}
class MobilePhoneInlandRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInLandRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.6;
}
for (CallRecord call : userRecords.getAnswerInLandRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
sumCost += distanceM * 0.3;
}
return sumCost;
}
}
class MobilePhoneInProvinceRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
for (CallRecord call : userRecords.getCallingInProvinceRecords()) {
double distanceS = (-call.getStartTime().getTime() + call.getEndTime().getTime()) / 1000;
if (distanceS < 0) {
continue;
}
double distanceM = (int) distanceS / 60;
if (distanceS % 60 != 0) {
distanceM += 1;
}
if (call.getCallType().equals("21")) {
sumCost += distanceM * 0.3;
} else if (call.getCallType().equals("22")) {
sumCost += distanceM * 0.3;
} else if (call.getCallType().equals("23")) {
sumCost += distanceM * 0.3;
}
}
return sumCost;
}
}
class MobilePhoneMessageRule extends CallChargeRule {
@Override
public double calCost(UserRecords userRecords) {
double sumCost = 0;
int number = 0;
for (MessageRecord m : userRecords.getSendMessageRecords()) {
int length = m.getMessage().length();
if (length <= 10) {
number++;
} else {
number += length / 10;
if (length % 10 != 0) {
number++;
}
}
}
if (number <= 3) {
sumCost = number * 0.1;
} else if (number <= 5) {
sumCost = 0.3 + 0.2 * (number - 3);
} else {
sumCost = 0.7 + 0.3 * (number - 5);
}
return sumCost;
}
}
class MessageRecord extends CommunicationRecord {
private String message;
public MessageRecord(String input) {
super();
this.message = input.substring(26);
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
class User {
private UserRecords userRecords = new UserRecords();
private double balance = 100;
private ChargeMode chargeMode;
private String number;
public double calCost() {
return chargeMode.calCost(userRecords);
}
public double calBalance() {
return balance - chargeMode.getMonthlyRent() - chargeMode.calCost(userRecords);
}
public UserRecords getUserRecords() {
return userRecords;
}
public void setUserRecords(UserRecords userRecords) {
this.userRecords = userRecords;
}
public ChargeMode getChargeMode() {
return chargeMode;
}
public void setChargeMode(ChargeMode chargeMode) {
this.chargeMode = chargeMode;
}
public String getNumber() {
return number;
}
public void setNumber(String number) {
this.number = number;
}
}
class Outputtool {
@SuppressWarnings("deprecation")
public void output(double out) {
// java.text.DecimalFormat df=new java.text.DecimalFormat("#.##");
// String a=df.format(out);
// System.out.print(a);
BigDecimal numb = new BigDecimal(out);
out = numb.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
System.out.print(out);
}
}
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（3）采坑心得：
1.不仔细导致正则表达式的错误，还有日期格式的正则表达式问题。用户输出要排序。
2.同一个电话两条通讯记录的时间有重合，该情况一开始没注意。
3.一开始没有注意短信数量导致计费错误。
（4）改进建议:
暂时无改进建议，还需要进一步反思，并学习其他同学的方法进行改进。
（5）总结：
通过几次PTA题目集的学习，对面向对象编程有了进一步理解，同时也暴露出自己很多不足之处，还需要进一步学习。在题目集解答过程中也发现有些地方不太能理解，希望老师可以给予一些提示性的意见。个人题目量有一些大，因为课程比较多，多科任务加起来有些重，希望题目量可以再进行一些精简化。
标签：inputs,return,String,double,ArrayList,PTA,计费,电信,public From： https://www.cnblogs.com/rainfly-lyc/p/17017282.html